RichThesaurus
non compos mentis
vs
one brick short of a full load
non compos mentis
adj
Insane; not of sound mind; not in control of oneself.
one brick short of a full load
adj
Not mentally sound; insane.
Stupid.
How often have the words
non compos mentis
and
one brick short of a full load
occurred in a corpus of books?
(source:
Google Ngram Viewer
)